WO2023019012A3 - Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans - Google Patents

Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans Download PDF

Info

Publication number
WO2023019012A3
WO2023019012A3 PCT/US2022/040316 US2022040316W WO2023019012A3 WO 2023019012 A3 WO2023019012 A3 WO 2023019012A3 US 2022040316 W US2022040316 W US 2022040316W WO 2023019012 A3 WO2023019012 A3 WO 2023019012A3
Authority
WO
WIPO (PCT)
Prior art keywords
heat rejection
centrifugal fans
induced draft
top mounted
curved centrifugal
Prior art date
Application number
PCT/US2022/040316
Other languages
French (fr)
Other versions
WO2023019012A2 (en
Inventor
Scott NEVINS
Robert VANDENBOER
Jeffrey Luke HERWIG
Original Assignee
Evapco, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evapco, Inc. filed Critical Evapco, Inc.
Priority to IL310832A priority Critical patent/IL310832A/en
Priority to EP22856704.6A priority patent/EP4211413A4/en
Publication of WO2023019012A2 publication Critical patent/WO2023019012A2/en
Publication of WO2023019012A3 publication Critical patent/WO2023019012A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/04—Direct-contact trickle coolers, e.g. cooling towers with cross-current only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C2001/006—Systems comprising cooling towers, e.g. for recooling a cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
    • F28C2001/145—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange with arrangements of adjacent wet and dry passages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

Heat rejection devices, including cooling towers, condensers and closed circuit coolers, having side-mounted backward-curved centrifugal fans mounted on top of the device, above a fan plenum instead of a top-mounted axial fan. Heat rejection capability can be easily modified by adding or subtracting fans without impacting unit footprint. Also, the ability to handle higher static pressures allows for the use of a more densely packed heat exchanger in the same footprint unit, which will increase the unit performance.
PCT/US2022/040316 2021-08-13 2022-08-15 Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans WO2023019012A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IL310832A IL310832A (en) 2021-08-13 2022-08-15 Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans
EP22856704.6A EP4211413A4 (en) 2021-08-13 2022-08-15 Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US202163232975P 2021-08-13 2021-08-13
US63/232,975 2021-08-13
US202163291084P 2021-12-17 2021-12-17
US63/291,084 2021-12-17
US17/887,876 US20230047198A1 (en) 2021-08-13 2022-08-15 Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans
US17/887,876 2022-08-15

Publications (2)

Publication Number Publication Date
WO2023019012A2 WO2023019012A2 (en) 2023-02-16
WO2023019012A3 true WO2023019012A3 (en) 2023-04-13

Family

ID=85178104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/040316 WO2023019012A2 (en) 2021-08-13 2022-08-15 Induced draft heat rejection equipment with top mounted backward-curved centrifugal fans

Country Status (4)

Country Link
US (1) US20230047198A1 (en)
EP (1) EP4211413A4 (en)
IL (1) IL310832A (en)
WO (1) WO2023019012A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917572A (en) * 1988-05-23 1990-04-17 Airflow Research And Manufacturing Corporation Centrifugal blower with axial clearance
US20080083231A1 (en) * 2004-12-20 2008-04-10 Zhan Wang Dehumidifying and Ventilating Method and Air Conditioner Therewith
CN203642346U (en) * 2013-11-20 2014-06-11 江苏宝信空调设备制造有限公司 Fan coil unit for central air conditioner
CN206786853U (en) * 2017-04-05 2017-12-22 深圳沃海森科技有限公司 The indoor ultrathin on-hook of split-type air conditioner
CN208832820U (en) * 2018-08-17 2019-05-07 杰欧（江苏）冷链装备有限公司 A kind of high-efficiency helical instant freezer
US20200158438A1 (en) * 2018-10-03 2020-05-21 Evapco, Inc. Modular counterflow cooling tower

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7802774B2 (en) * 2007-02-20 2010-09-28 Baltimore Aircoil Company, Inc. Cooling tower air inlet and drain pan
KR20130031300A (en) * 2010-05-27 2013-03-28 존슨 컨트롤스 테크놀러지 컴퍼니 Thermosyphon coolers for cooling systems with cooling towers
CN108168331A (en) * 2018-02-11 2018-06-15 广州览讯科技开发有限公司 A kind of centrifugation exhausting single admission top air-out cross flow cooling tower
CN110701923A (en) * 2019-10-21 2020-01-17 梁耀文 Low-rotating-speed centrifugal wind wheel cooling tower

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917572A (en) * 1988-05-23 1990-04-17 Airflow Research And Manufacturing Corporation Centrifugal blower with axial clearance
US20080083231A1 (en) * 2004-12-20 2008-04-10 Zhan Wang Dehumidifying and Ventilating Method and Air Conditioner Therewith
CN203642346U (en) * 2013-11-20 2014-06-11 江苏宝信空调设备制造有限公司 Fan coil unit for central air conditioner
CN206786853U (en) * 2017-04-05 2017-12-22 深圳沃海森科技有限公司 The indoor ultrathin on-hook of split-type air conditioner
CN208832820U (en) * 2018-08-17 2019-05-07 杰欧（江苏）冷链装备有限公司 A kind of high-efficiency helical instant freezer
US20200158438A1 (en) * 2018-10-03 2020-05-21 Evapco, Inc. Modular counterflow cooling tower

Also Published As

Publication number Publication date
EP4211413A4 (en) 2023-08-30
WO2023019012A2 (en) 2023-02-16
US20230047198A1 (en) 2023-02-16
EP4211413A2 (en) 2023-07-19
IL310832A (en) 2024-04-01

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